From: Hans Verkuil <hansverk@cisco.com>
Date: Wed, 24 Aug 2016 10:17:22 +0000 (-0300)
Subject: [media] cec: fix ioctl return code when not registered
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=60815d4a78204915f5cdf79a536bc96d5d23ae5f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

[media] cec: fix ioctl return code when not registered

Don't return the confusing -EIO error code when the device is not registered,
instead return -ENODEV which is the proper thing to do in this situation.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---

diff --git a/drivers/staging/media/cec/cec-api.c b/drivers/staging/media/cec/cec-api.c
index 6f58ee85eea4..e274e2f22398 100644
--- a/drivers/staging/media/cec/cec-api.c
+++ b/drivers/staging/media/cec/cec-api.c
@@ -435,7 +435,7 @@ static long cec_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	void __user *parg = (void __user *)arg;
 
 	if (!devnode->registered)
-		return -EIO;
+		return -ENODEV;
 
 	switch (cmd) {
 	case CEC_ADAP_G_CAPS: